About DataForge
DataForge is a focused CSV studio: a cleaner, a table merger, a version comparator and a CSV↔JSON converter in one place. Instead of hopping between half a dozen sites, you load your file once and switch tabs.
Every operation runs entirely in your browser. There are no accounts, no ads and no analytics that sell your behaviour. The files you open — customer lists, exports and personal data — never leave your device.
It is built and maintained by Interhive OÜ, a small studio in Tallinn that makes tiny, dependable web tools.
What it does
- Clean
Trim whitespace, drop duplicate rows and remove empty rows and columns in one pass.
- Auto delimiter
Comma, semicolon, tab or pipe — detected for you, or chosen by hand.
- Merge
Join two tables on a key column with inner, left or full-outer semantics.
- Compare
Diff two versions and see added, removed and modified rows at a glance.
- CSV ↔ JSON
Convert tables to JSON for an API, or flatten JSON back into a spreadsheet.